Home / 677,670.36-935,168.28-387,263.52

Finding the Fourth Proportional to 677,670.36, 935,168.28 and 387,263.52

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Solution

The fourth proportional to 677,670.36, 935,168.28 and 387,263.52 is: 534,414.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,670.36 : 935,168.28 = 387,263.52 : x
  2. Step 2: Convert to fraction form
    677,670.36/935,168.28 = 387,263.52/x
  3. Step 3: Cross multiply
    677,670.36x = 935,168.28 × 387,263.52
  4. Step 4: Simplify right side
    677,670.36x = 362,156,559,905.15
  5. Step 5: Solve for x
    x = 362,156,559,905.15/677,670.36
  6. Step 6: Final answer
    x = 534,414.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.